Knife



7 Dec. 4, 1923. 1,476,036

H. H. DOEHLER ET AL KNIFE Filed July -9, 1925 Patented Dec. 4 1923.

image ram 955L- near/ran H. nonrrnna AND MARCUS STERN, OF BROOKLYN, ivEwYoRmsAIn'sTERN AssIqNon' To SAID DOEHLER. i

KNIFE.

Application filed July 9,

To all whom it may concern:

Be it known that we," HERMAN H. DoEH- LEE, a citizen of the UnitedStates, and MARCUS STERN, a citizen ofthe United States,

5 both residing in Brooklyn, county of Kings,

and State of New York, have invented certain new and useful Improvementscation. i This invention relates to knives of the type in whichthe bladeifoldsfwithin the handle and which arefconventionally known as pocketknives.

It is an object of this invention to produce a knife of simplifiedconstruction, the parts of which can be readily manufactured andassembled at low cost.

Another object of the invention is to produce a knife with a one piecehandle which can be made, for example, by die casting.

Another object of the invention is to produce a knife in which thespring is not fastened to the sides of the handle, but is retained inplace in the handle without direct 2 fastening by means of lugs on thehandle and the knife blade.

Other objects and advantages will appear as the description proceeds.

Knives, of which the following a specifi- Referring now to the drawings,which il-' 0 lustrate a preferred embodiment of the in vention:

I Figure 1 is a disassembled perspective view of the major parts of theknife.

Figure 2 is a part sectional view of the assembled knife.

In the embodiment illustrated, the knife consists of four parts, ahandle 1, spring 2, blade 3 and the retaining or pivot pin 4 for holdingthe blade and spring in place in the handle.

The handle 1 consists of the two sides5, the back 6 and the end 7, whichare all in one piece and formed preferably by die castin V lhe back 6 isprovided with two integral v upstanding projections 8 and 9, asillustrated, and the sides 5 are provided with a hole 10 for the pivotpin 4. 'The hole 10 may be formed in the casting operation or may beformed in any suitable way after the casting is removed from the die.

The spring 2 consists of a straight piece of spring metal which istapered off at the 1 rear as at 11, and'provided with thenotch as 12,the end 18 being auitably shaped to co= legs. Serial No; 650,327.

operate with the heel of the blade 3. It will be s e tha t sp 2 i f ponstruction which canbe easily formedfas for example by astampingoperation.

The blade 3 consists of the ordinary cutt ng portion 14: and the heel15whichis cut" away at 1 6 to provide a bearing place for the end 1?; ofspring 3 when the parts are assembled and the blade open; The hole forthe pivotpi'n is indicated at'17 v assembling the arts the end 11 of theo iln -isfl d. nder t e Proje tion-@ 5 bf t is die cast handle 1, andthe spring dropped between the sides 5 where it takes the posi tionillustrated in Fig. 2, with the projection 9 extending into the notch12. The blade is then inserted between the sides 5 and the pivot pin 1pushed through the holes 10 and 17 and fastened in place. The projection9, extending into the notch 12, provides a bearing point or fulcrum;and, as the rear of the spring is held under the projection 8 theinsertion of the blade forces down the end 18 and forces the back of thespring against the back of the handle as at 18 so as to provide thenecessary spring pressure of the end 13 against the heel 15 of theblade. The spring is automatically retained in place by the blade,making it unnecessary to rivet or pin the spring between the handles, asin the ordinary pocket knife construction.

'It will be seen that we have provided a knife in which all the partsare of simple construction and can be formed at a low cost, and whichcan be readily assembled to form the complete article by unskilledlabor.

In the assembled knife, the springis almost entirely surrounded by thehandle portion, which may be 'a'noncorrosive alloy or be protected byaplating, whereby the spring is protected from perspiration and can becarried in ones pocket without rusting. r

Various modifications may be resorted to, without departing from thespirit of thein vention or the scope of the appended claims, and partsof the device may be used without others. I l

What we claim is:;

1; A pocket knife includingan integral handle, a lug on the handle andan undercut beveled recess, the'lug and recess being inclined toward theopen end of the handle for pivoting the blade within. the handleinengagement with said spring, a spring with a notch in the back thereofand a beveled 7 end enclosed by the handle and fitting over the lug andunder the beveled recess, a blade and pivot pin for holding the bladeand prisingintegral sides, back and end, a pair of upstanding lugs onthe back of the handle sloping toward the open end thereof, a recessbetween the rear lug and the back, a spring adapted to fit over thefront lug and into'said recess, a blade and a pivot pin for pivoting theblade within the handle, in engagement with said spring;

' 3. A pocket knife including a one-piece handle withintegral lugs,located intermediate theiendsthereof, extending inward from the backandsloping in the direction of the open end of the handle, a spring shorterthan the handle, engaging the lower surface of one lug and resting uponthe upper surface of the other lug, a blade engaging one end of thespring and a pivot pin for 7 pin for holding the blade and spring inplace.

5; A pocket knife, including a die cast handle, comprising integralsides, back and end, a lug on the back of the handle and an undercutbeveled recess, the lug and the recess sloping toward the open end ofthe handle.

In testimony whereof we have aflixed our signatures to thisspecification.

, HERMAN DOEHLERQ MARCUS STERN.

Certificate of Correction.

It i hereby certified that in Letters Patent No. 1,476,030, grantedDecember 4, i 1923, upon the application of Herman H. Doehler and MarcusStern, of Brooklyn, New York, said Stern assignor to said Doehler, foran improvement in Knives, an error appears in the printed specificationrequiring correction as follows: Page 1, lines 109 and 110, claim 1,strike out the Words for pivoting the blade within the handle, inengagement with said spring and that the said Letters Patent should beread with this correction therein that the Same may conform to therecord of the case in the Patent Office.

Signed and sealed thi 8th day of January, A. D., 1924.

[SEAL] KARL FENNING,

' Acting Commissioner of Patents.

